Patents by Inventor Andromachi CHATZIELEFTHERIOU

Andromachi CHATZIELEFTHERIOU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Encoding for data recovery in storage systems
    Patent number: 11831333
    Abstract: A method of reading from a storage medium to recover a group of information sectors, each comprising a respective information payload. The medium stores redundancy data comprising a plurality of separate redundancy codes for the group, each code being a linear sum of terms, each term in the sum being the information payload from a different respective one of the information sectors in the group weighted by a respective coefficient of a set of coefficients for the redundancy code. The method comprises, after the redundancy data has already been stored on the medium: identifying a set of k? information sectors to be recovered; selecting k? of the redundancy codes; determining a square matrix E of the k? information sectors by the k? sets of coefficients of the selected codes; determining a matrix D being a matrix inverse of E; and recovering the k? information payloads from the inverse matrix D.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 28, 2023
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Christos Gkantsidis, Antony Ian Taylor Rowstron, Andromachi Chatzieleftheriou, Richard John Black, Austin N. Donnelly, István Haller
  • ENCODING FOR DATA RECOVERY IN STORAGE SYSTEMS
    Publication number: 20230053467
    Abstract: A method of reading from a storage medium to recover a group of information sectors, each comprising a respective information payload. The medium stores redundancy data comprising a plurality of separate redundancy codes for the group, each code being a linear sum of terms, each term in the sum being the information payload from a different respective one of the information sectors in the group weighted by a respective coefficient of a set of coefficients for the redundancy code. The method comprises, after the redundancy data has already been stored on the medium: identifying a set of k? information sectors to be recovered; selecting k? of the redundancy codes; determining a square matrix E of the k? information sectors by the k? sets of coefficients of the selected codes; determining a matrix D being a matrix inverse of E; and recovering the k? information payloads from the inverse matrix D.
    Type: Application
    Filed: December 14, 2020
    Publication date: February 23, 2023
    Inventors: Christos GKANTSIDIS, Antony Ian Taylor ROWSTRON, Andromachi CHATZIELEFTHERIOU, Richard John BLACK, Austin N. DONNELLY, István HALLER
  • Disaggregated data storage and retrieval system
    Patent number: 10768825
    Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 8, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
  • Disaggregated data storage and retrieval system
    Patent number: 10719239
    Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 21, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
  • DISAGGREGATED DATA STORAGE AND RETRIEVAL SYSTEM
    Publication number: 20200081619
    Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Antony Ian Taylor ROWSTRON, Ioan Alexandru STEFANOVICI, Aaron William OGUS, Douglas Wayne PHILLIPS, Richard John BLACK, Austin Nicholas DONNELLY, Alexander Lloyd GAUNT, Andreas GEORGIOU, Ariel GOMEZ DIAZ, Serguei Anatolievitch LEGTCHENKO, Reinhard Sebastian Bernhard NOWOZIN, Benn Charles THOMSEN, Hugh David Paul WILLIAMS, David LARA SAUCEDO, Patrick Neil ANDERSON, Andromachi CHATZIELEFTHERIOU, John Christopher DAINTY, James Hilton CLEGG, Raluca Andreea DIACONU, Rokas DREVINSKAS, Mengyang YANG
  • DISAGGREGATED DATA STORAGE AND RETRIEVAL SYSTEM
    Publication number: 20190354283
    Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Antony Ian Taylor ROWSTRON, Ioan Alexandru STEFANOVICI, Aaron William OGUS, Douglas Wayne PHILLIPS, Richard John BLACK, Austin Nicholas DONNELLY, Alexander Lloyd GAUNT, Andreas GEORGIOU, Ariel GOMEZ DIAZ, Serguei Anatolievitch LEGTCHENKO, Reinhard Sebastian Bernhard NOWOZIN, Benn Charles THOMSEN, Hugh David Paul WILLIAMS, David LARA SAUCEDO, Patrick Neil ANDERSON, Andromachi CHATZIELEFTHERIOU, John Christopher DAINTY, James Hilton CLEGG, Raluca Andreea DIACONU, Rokas DREVINSKAS, Mengyang YANG